Toray Plastics (america), Inc.

Toray Plastics, Inc.

Harold Egon Koehn

Matthew H Brown

Emilio Coletta

Keunsuk P Chang

Tracy Paolilli

Mark S Lee

Claudio M Paulino

Scott Narkevicius

Takeshi Mizumura

Tien-Kuei Su

Described is a mono-axially oriented polyolefin film including a core or base layer containing a plurality of voids formed by a cavitating agent, wherein the film is oriented at least 4 times in the machine direction, and exhibits excellent tear resistance in the transverse direction.

Tear resistant mono-axially oriented propylene-based film

A two-layer mono-axially oriented film includes a first layer of an opaque beta-nucleated microvoided propylene-based polymer; and a second layer containing a dark pigment that is adapted for use in a thermal printer in which the thermal print-head contacts the exposed surface of the first layer. The dark pigment of the second layer pigment has a color contrasting with the color of the first layer and can contain a carbon black. The first layer includes microvoids and may be made transparent upon the application of heat by collapsing the voids of the first layer or upon the application of ultra-sonic energy.

Non-chemical thermally printable film

A monoaxially oriented film including an ethylene-propylene copolymer elastomer, a non-elastomeric propylene-based random copolymer, and a low density polyethylene, which is oriented at least about 2.5 times in one direction and exhibits excellent linear directional tear properties parallel to the orientation direction, excellent heat seal performance in terms of high heat seal strengths and low seal initiation temperature, and is less than 50 &#x3bc;m in thickness after orientation. This 'thin' film formulation and orientation is suitable for pouch applications requiring an 'easy-tear' linear tear feature and excellent hermetic seal properties.

Heat sealable film with linear tear properties

A monoaxially oriented film including a metallized layer; a gas barrier layer; and a propylene-based random copolymer and at least about 3 wt % of a low density polyethylene which is oriented at least about 2.5 times in one direction and exhibits excellent linear directional tear properties parallel to the orientation direction and excellent heat seal performance in terms of high heat seal strengths and low seal initiation temperature. This film formulation and orientation is suitable for pouch applications requiring high gas and moisture barrier, an 'easy-tear' linear tear feature, and excellent hermetic seal properties.

High barrier heat sealable film with linear tear properties

A monoaxially oriented film including a propylene-based random copolymer and at least about 3 wt % of a low density polyethylene which is oriented at least about 2.5 times in one direction and exhibits excellent linear directional tear properties parallel to the orientation direction and excellent heat seal performance in terms of high heat seal strengths and low seal initiation temperature. This film formulation and orientation is suitable for pouch applications requiring an 'easy-tear' linear tear feature and excellent hermetic seal properties.

A biaxially oriented laminate film including a core layer including a blend of crystalline polylactic acid polymer and an inorganic antiblock particle which is biaxially oriented at low transverse direction orientation temperatures to impart a degree of cavitation around the particles such that a matte or opaque appearance is obtained. The laminate film may further have additional layers such as a heat sealable layer disposed on one side of the core layer including an amorphous polylactic acid resin and/or a polylactic acid resin-containing layer disposed on the side of the core layer opposite the heat sealable layer, a metal layer, or combinations thereof.

Method to produce matte and opaque biaxially oriented polylactic acid film

A laminate film including a first polyolefin heat sealable matte resin layer including a blend of 15-30 wt % metallocene-catalyzed butene-propylene elastomer and 85-70 wt % of a matte resin including ethylene homopolymer and propylene homopolymer or copolymer is disclosed. The laminate film could further have additional layers such as a second polyolefin resin-containing layer, a metal layer, or combinations thereof.

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North Kingstown, RI, United States of America

Harold Egon Koehn